Sampling device



y 1949. A. EJREINERT 2,75,57

SAMPLING DEVICE Filed Feb. 1'7, 1947 grwwwkov;

Arm/n E. Remerf Patented July 12, 1949 UNITED STATES E A'E'ENT OFFICE SAMPLING DEVICE Armin E. lReinert, Shawano, Wis. Application February 17, 1947, Serial No. 729,138

4 Claims.

This invention relates to improvements in sampling devices for collecting samples of condensed vapors. In a particular adaptation of the invention, the device may be attached to single or multiple effect evaporators to determine entrainment losses by condensing a small portion of the vapors goingto the condenser or from one effect to another. When such entrainment losses are determined from the sample of condensed vapors suitable adjustments can be made on the evaporator to reduce the losses to a minimum.

It is an object of the invention to provide a sampling device which may be readily attached to a conduit for a flowing stream of vapors to extract therefrom a portion for sampling purposes.

It is another object of the invention to provide such a device which may be operated continuously returning any uncondensed vapors to the vapor conduit.

It is a further object of the invention to provide a sampling device which is simple in construction and positive and eificient in operation.

Other and further objects and advantages of the invention will be apparent from the follow ing detailed explanation taken in conjunction with the accompanying drawings wherein a preferred embodiment of the principles of the invention have been selected for exemplification.

In the drawings:

Fig. 1 is a View partly in vertical section of a sampling device embodying the invention, and

Fig. 2 is an end view in the device shown in Fig. 1.

Referring more particularly to the drawings, wherein like numerals refer to like parts, 2 represents in its entirety an elongated tubular condenser. Condenser 2, as shown of the surface type, has been found adequate for most purposes, that is, where the room temperature is 20 degrees F. or more below the temperature in the vapor line. However, where the room temperature is not at least 26 degrees F. below the temperature in the vapor line any suitable and well known system of tubes and cooling water, not illustrated, may form a part of the condenser.

Condenser 2, at opposite end portions thereof, is provided with shanks ii and 6 threaded for coupling engagement with inlet and return tubes 8 and iii, respectively. The projecting ends of tubes 8 and ID are fashioned similarly to each other by a diagonal out forming pyramidal tip portions which project into the vapor line. Such a vapor line, in the form of a conduit or duct for 2 a flowing stream of vapors is represented at A and the direction of the flow is indicated by the arrows. The tubes 8 and it) may be secured to the wall of conduit A in any well known manner.

As shown, the mouth ll of inlet tube 8 faces upstream and is preferably so positioned with respect to the conduit that the base portion Id thereof is disposed at the outer rim of the flowing stream and the apex portion is thereof is disposed at the center of theflowing stream. In this manner, the flow pressure will positively force a portion of the flowing stream of vapors adequate for ordinarysampling purposes into the condenser 2.

The mouth I2 of outer or return tube it, as shown, faces downstream of the flowing stream of vapors. Similarly to the mouth it of the inlet tube return mouth [2 is so positioned with respect to the conduit A that the base portion I l thereof is at the outer rim of the flowing stream and the apex portion l3 thereof is disposed at the center of the flowing stream. In this manher, as the vapors in conduit A pass the mouth 52, a vacuum is produced which draws the uncondensed vapors from the condenser back into the vapor line. The novel construction of the mouths It and i2 permits a minimum of interference with the flow through conduit A and at the same time eiiects a positive and adequate intake and discharge, respectively, of vapors regardless the force or volume of the flow in the conduit.

The device shown in Fig. 1 is adapted for continuous operation and ordinarily a portion of the flowing stream of vapors constantly passes through condenser 2. The invention, however, contemplates that the inlet tube 3 be rotatable so that by turning the mouth H in either direction away from the vapor stream the portion of entering vapors may be reduced or, by rotating the tube 8 so that the mouth I! thereof faces downstream in the manner of mouth 52, flow through condenser 2 may be cut off entirely.

Any accumulation of non-fluid material may conveniently be cleaned from condenser 2 by removing end plate 16 suitably secured such as by bolts to annular flange It provided at the outlet end of condenser 2.

For collecting the condensate from condenser- 2, any suitable container such as a bottle 2c is provided. For positioning container 2%, condenser 2 is provided with a depending drain or outlet tube 22 having intermediate the ends thereof an annular flange is against which the mouth of container 28 may bear, preferably through the 3 medium of a gasket 26, as shown. The projecting end of drain tube 22 extends interiorly of container 20 to tend against leakage. To urge container 29 into airtight engagement with the drain tube 22, a plurality of coil springs 28 are provided having the ends thereof detachably connected through apertures in the flange 2B and the plate 30 provided as a support for the bottom of the container.

The operation of the. device herein described and illustrated will be readily apparent. As a portion of the flowing stream of vapors in conduit A is by-passed through condenser 2, any condensate will find its way to container 20, Container 20 may be removed merely by detaching springs 28 from either the flange 24 or the supporting plate 30 and an empty container quickly substituted.

It will be understood that the particular con struction herein illustrated and described is eX- emplary only of the principles of the invention which embrace such modified constructions fall within the scope of the following claims.

I claim:

1. A vapor sampling device comprising a con denser, an inlet tube adapted for connection with a flowing stream of vapors and having an elongated mouth extending transversely of and substantially from the center to the outer rim of the flowing stream for conductin a sample of the vapors to said condenser, a return tube adapted for connection, with said flowing stream. of vapors for returning uncondensed vapors to said' flowing stream, and means for collecting condensate for said condenser.

2. A vapor sampling system comprising, a conduit for a flowing stream of vapors, a condenser, an inlet tube connecting said condenser with said conduit and having an elongated mouth extending transversely of the, flowing stream and open substantially from the center to the inner wall of said.- conduit for conducting a sample of the vapors to said condenser, a return tube for returning uncondensed vapors to said conduit, and means for collecting the condensate from said condenser.

3. A vapor line sampling system comprising, a conduit for a flowing streamof vapors, a condenser, an inlet tube connecting said condenser with said conduit for conducting a portion of the vapors from the said flowing stream to said condenser, the mouth of said inlet tube being dis posed diagonally to form a pyramidal tip for said tube and said tube bein connected with said conduit in such a manner that the base of said tip is positioned at the outer rim of the vapor stream and the apex of said tip is positioned at the center of the vapor stream, a return tube connecting said condenser with said conduit for returning uncondensed vapors, and means for collecting the condensate from said condenser.

4. A vapor line sampling system comprising, a conduit for a flowing stream of vapors, a condenser, an inlet tube connecting said condenser with said conduit for conducting a portion of the vapors from the said flowing stream to said condenser, a return tube connecting said condenser with said conduit for returnin uncondensed vapors, the mouths of said inlet and return tubes being disposed diagonally to form pyramidal tips for said tubes and said tubes being connected with said conduit in such a manner that the bases of said tips are positioned at the outer rim of the vapor stream and the apexes of said tips are positioned at the center of the vapor stream, and means for collecting the condensate from said condenser.

ARMIN E. REINERT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 961,419 Muchka June 14, 1910 1,601,383 Todd Sept. 28, 1926 1,697,432 Martin Jan. 1, 1929 1,837,853 Grace Dec. 22, 1931 1,845,247 Davidson Feb. 16, 1932 2,030,682 Campbell Feb. 11,. 1936 2,146,072 Howard Feb. 7, 1939 2,301,815 Robison Nov. 10, 1942 2,322,018 Huber June 15, 1943 2,425,669 Brock Aug. 12, 1947 2,446,587 Henry Aug, 10, 1948 

